Bump vimeo/psalm from 4.7.2 to 4.7.3

Bumps [vimeo/psalm](https://github.com/vimeo/psalm) from 4.7.2 to 4.7.3.
- [Release notes](https://github.com/vimeo/psalm/releases)
- [Commits](vimeo/psalm@4.7.2...4.7.3)

Signed-off-by: dependabot-preview[bot] <[email protected]>